|Title|Release|Consoles|Handheld|PC|Arcade|
|---|---|---|---|---|---|
|NFL Blitz|1997, 1998|N64, PS|GBC|Windows|Arcade|
|NFL Blitz '99|1998|N/A|N/A|N/A|Arcade|
|NFL Blitz 2000|1999|N64, PS, Dreamcast|GBC|Windows|N/A|
|NFL Blitz 2000 Gold Edition|1999|N/A|N/A|N/A|Arcade|
|NFL Blitz 2001|2000|N64, PS, Dreamcast|GBC|Windows|N/A|
|NFL Blitz Special Edition|2001|N64|N/A|N/A|N/A|
|NFL Blitz 20-02|2001|PS2, Xbox, NGC|GBA|N/A|N/A|
|NFL Blitz 20-03|2002|PS2, Xbox, NGC|GBA|N/A|N/A|
|NFL Blitz Pro|2003|PS2, Xbox, NGC|N/A|N/A|N/A|
|Blitz: The League|2005|PS2, Xbox, PS3, Xbox 360|N/A|N/A|N/A|
|Blitz: The League II|2008|PS3, Xbox 360|N/A|N/A|N/A|
|NFL Blitz|2012|PS3, Xbox 360|N/A|N/A|N/A|

Question: how many titles are there total in the nfl blitz series?
Answer: 12